How to Show a 'Grep' Result with the Complete Path or File Name

How to show a 'grep' result with the complete path or file name

Assuming you have two log-files in:

• C:/temp/my.log
• C:/temp/alsoMy.log

'cd' to C: and use:

grep -r somethingtosearch temp/*.log

It will give you a list like:

temp/my.log:somethingtosearch
temp/alsoMy.log:somethingtosearch1
temp/alsoMy.log:somethingtosearch2

How to grep only show path/filename?

grep -l will output JUST the names of files which matched, without showing the actual match.

grep to match filename in full path

awk, getting the / separated last field:

% awk -F/ '{print $NF}' <<<'/etc/network/interfaces'
interfaces

% awk -F/ '{print $NF}' <<<'/home/user/Documents/report.pdf'
report.pdf

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grep, getting the portion after last /:

% grep -o '[^/]\+$' <<<'/etc/network/interfaces'
interfaces

% grep -o '[^/]\+$' <<<'/home/user/Documents/report.pdf'
report.pdf

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sed, replacing everything upto the last / with null:

% sed 's_.*/__' <<<'/etc/network/interfaces' 
interfaces

% sed 's_.*/__' <<<'/home/user/Documents/report.pdf'
report.pdf

How can I extract a file name from a grep result?

OK, thanks to the help from alb3rtobr, I was able to get it:

egrep -hor '(^\s*/|\$\(\s*/|\`\s*/)[^ ]*' /etc/rc.d/* /etc/init.d | sed -e 's/\($(\|)\|^\s*\)//g' | sort | uniq  

I modified the egrep to continue matching until encountering a space and then added the -o option to return only the matched pattern. I also modified the sed to trim leading whitespace.

EDIT: Changed to match pattern while not a space character

How can I use grep to show just filenames on Linux?

The standard option grep -l (that is a lowercase L) could do this.

From the Unix standard:

-l
    (The letter ell.) Write only the names of files containing selected
    lines to standard output. Pathnames are written once per file searched.
    If the standard input is searched, a pathname of (standard input) will
    be written, in the POSIX locale. In other locales, standard input may be
    replaced by something more appropriate in those locales.

You also do not need -H in this case.

How to show the full path for a file found using the find command and given to grep to match a string

Move the -print to the right-hand end so it is "gated" by the outcome of exec:

find `pwd -P` -name config.php -exec grep 'assetBasePath.*cloudfront' {} \; -print 

Show filename and line number in grep output

I think -l is too restrictive as it suppresses the output of -n. I would suggest -H (--with-filename): Print the filename for each match.

grep -Hn "search" *

If that gives too much output, try -o to only print the part that matches.

grep -nHo "search" * 

Linux find xargs command grep showing path and filename

The main problem here is that head doesn't pass on the info about what lines came from which file, so grep can pick out the matching lines but not show the file name or path. awk can do the matching and trimming to 50 lines, and you can control exactly what gets printed for each match. So something like this:

find /folder/202205??/ -type f -exec awk '/^Starting/ {print FILENAME ": " $0}; (FNR>=50) {nextfile}' {} +

Explanation: the first clause in the awk script prints matching lines (prefixed by the FILENAME, which'll actually include the path as well), and the second skips to the next file when it gets to line 50. Also, I used find's -exec ... + feature instead of xargs, just because it's a bit cleaner (and won't run into trouble with weird filenames). Terminating the -exec command with + instead of \; makes it run the files in batches (like xargs) rather than one at a time.

grep without showing path/file:line

No need to find. If you are just looking for a pattern within a specific directory, this should suffice:

grep -hn FOO /your/path/*.bar

Where -h is the parameter to hide the filename, as from man grep:

-h, --no-filename

Suppress the prefixing of file names on output. This is the default
when there is only one file (or only standard input) to search.

Note that you were using

-H, --with-filename

Print the file name for each match. This is the default when there is
more than one file to search.

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